SRC/dlapmr.f(3)

NAME
SRC/dlapmr.f

SYNOPSIS

  Functions/Subroutines
subroutine dlapmr (forwrd, m, n, x, ldx, k)
DLAPMR rearranges rows of a matrix as specified by a permutation vector.

Function/Subroutine Documentation

  subroutine dlapmr (logical forwrd, integer m, integer n, double precision, dimension( ldx, * ) x, integer ldx, integer, dimension( * ) k)

DLAPMR rearranges rows of a matrix as specified by a permutation vector.

Purpose:

    !>
    !> DLAPMR rearranges the rows of the M by N matrix X as specified
    !> by the permutation K(1),K(2),...,K(M) of the integers 1,...,M.
    !> If FORWRD = .TRUE.,  forward permutation:
    !>
    !>      X(K(I),*) is moved X(I,*) for I = 1,2,...,M.
    !>
    !> If FORWRD = .FALSE., backward permutation:
    !>
    !>      X(I,*) is moved to X(K(I),*) for I = 1,2,...,M.
    !>

Parameters
    FORWRD

    !>          FORWRD is LOGICAL
    !>          = .TRUE., forward permutation
    !>          = .FALSE., backward permutation
    !>

    M

    !>          M is INTEGER
    !>          The number of rows of the matrix X. M >= 0.
    !>

    N

    !>          N is INTEGER
    !>          The number of columns of the matrix X. N >= 0.
    !>

    X

    !>          X is DOUBLE PRECISION array, dimension (LDX,N)
    !>          On entry, the M by N matrix X.
    !>          On exit, X contains the permuted matrix X.
    !>

    LDX

    !>          LDX is INTEGER
    !>          The leading dimension of the array X, LDX >= MAX(1,M).
    !>

    K

    !>          K is INTEGER array, dimension (M)
    !>          On entry, K contains the permutation vector. K is used as
    !>          internal workspace, but reset to its original value on
    !>          output.
    !>

Author
    Univ. of Tennessee

    Univ. of California Berkeley

    Univ. of Colorado Denver

    NAG Ltd.

Definition at line 103 of file dlapmr.f.

Author

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